Telephonic apparatus



Juiy 13, 1926. r 1,592,277

'.C. E. LANE TELEPHONI C APPARATUS Filed July 12, 1923 1 ternating 55 Patented July 13, 1926.

UNITED *STAT CLARENCE .E. LANE, OF MONTCL COMPANY; INCORPORATED, OE

Application filed July 12, 1923.

phones or deaf sets.

The ob]ect of the inventio to provide a convenient which does not hamper the the user and which distinctly weak soun direction.

In previous forms of the transmitter has eithe a desk or table hung upon the user.

sounds in This is awkward it is dificultfor position that the upon a rectly The siderably hampers user and the second sary for the user near the us front of the first form of the to face the order front of his coat or vest.

The present inve diiliculties by providing the transmitter is moun of the user ade and hence may be AIR, new JERSEY, assrenon. T wnsrnrm ntnc'rmc new YORK, n. Y., A

CORPORATION OF NEW YORK.

TELEPHONIC APPARATUS.

relates to telephonic appato devices for aiding these lly known as audioform of deaf set movements of will enable him to hear ds coming from any electrical deaf sets, r been placed upon er or has been coat or vest of apparatus conthe movements of the form makes it necessource of weak to hear them distinctly. and inconvenient and often the user to get into such a sounds will impinge ditransmitter hung upon the ntion overcomes these af set in which ted upon the wrist quickly moved to a position such that sounds coming from any direction wi while at the same ll impinge directly upon it,

time leaving the user,

the

greatest freedom of movement.

- Referring to the drawing:

schematically a suitable c1r- Fig. 1 shows nt of the deaf set.

cuit arrangeme Fig. 2 shows set is carried or Fig. 3 shows for securing it ,to

Referring to Fi direct current by a plied with which also filaments of amplifying tubes 3 an through the variable resistance 5.

d dare coupled in a well 5 and com fying known manner tubes 4 '3 an by transformer I the manner in supplies current prise a well known form of plifer. 'Voltage which the deaf worn by a user, and,

the transmitter with means the wrist of the g. 1, transmitter battery 2 user. 1 is supto energize the d 4 Amplitwo' stage amfor the output GlIGllltS, of

the tubes is supplied by'battery 6 connected as shown;

transmitter 1, resistance thus causing on'dary of When a sound transformer 7.

impinges upon it causes a variation n its a' corresponding al- I]. M. F. to be induced in the sec- Thi's M.

F. lation to Serial no; 651,005.

after being amplified in a well known manner by tubes 3 and 4 is impressed upon the circuit containing receiver 8, thus causing the receiver to reproduce the sound with sufficient strength for it to be clearly heard by one partially deaf. The primary of transformer 7 is shunted by a variable resistance 9 which can be adjusted to regulate the voltage applied to the amplifiers and hence regulate the volume of the sound the receiver, to a value which is comfortable for the user.

The entire. apparatus with the exception of the transmitter and receiver is arranged in a case 10 which may be placed in the pocket of one using the invention. The top of case. 10 is provided with binding posts for attachment of the conductors leading to the transmitter and the receiver. The receiver 8 may be conveniently secured adjacent the ear of the user by a head band 11 and may be connected to the apparatus by means of a duplex cord 12 which-passes under the wearers coat at the collar and hence is quite inconspicuous. The transmitter 1 may be of any suitable form provided at its base with metallic loops 13 through which is passed a strap 14 having a buckle 15 by means of which it may be conveniently attached to the wrist of the wearer. leather flap 16 sewed to the strap covers the metallic loops 13 and prevents them from being felt by the user. The transmitter may be conveniently connected to the apparatus by means of a duplex cord 17 which passesfront of the lips of one s transmitter and a telephone receiver, means to holdthe receiver adjacent the ear of a user, and means to attach the transmitter to thewrist of a user in a relatively fixed rethe wrist of a user.

2. A deaf set comprisingv a telephone transmitter and a telephone receiver, means to hold the receiver adjacent the ear of a user, and a Wrist strap attached to the transmitter for securing it in a relatively fixed relation to the Wrist of a user.

3. A deaf set comprising a telephone receiver and means for associating said receiver with the ear of the user, a telephone transmitter and'means for securing the said transmitter in a fixed relation to the wrist of the user, and circuit for operatively connecting said transmitter to said receiver.

4. A deaf set comprising a telephone receiver and means for associating said receiver with the ear of the user, a telephone transmitter and means for securing the said transmitter in a fixed relation to the wrist of the user, circuit for operatively connectlng said transmitter to said receiver, and a source of energy in said circuit adapted to be carried by the user.

In Witness whereof, I hereunto subscribe my name this 3 day of July, A. D. 1923.

CLARENCE E. LANE.- 

